Mysql 查询以在逗号分隔的列表中显示一个列名
我在mysql数据库中工作,我需要一些帮助来列出以逗号分隔的一列数据值,实际上有两个表:一个是persons表,另一个是groups表,现在一个人可以属于多个组,所以我尝试显示用户数据 我想这样显示数据:Mysql 查询以在逗号分隔的列表中显示一个列名,mysql,sql,select,Mysql,Sql,Select,我在mysql数据库中工作,我需要一些帮助来列出以逗号分隔的一列数据值,实际上有两个表:一个是persons表,另一个是groups表,现在一个人可以属于多个组,所以我尝试显示用户数据 我想这样显示数据: UserName Group Email User #1 Grp1,Grp3,Grp5 user1@email.com User #2 Grp3,Grp1
UserName Group Email
User #1 Grp1,Grp3,Grp5 user1@email.com
User #2 Grp3,Grp1 user2@email.com
这是我的问题
select ft_smsender_groups as g left join (select p1.id,p2.group_id
from ft_smsender_persons2groups as p2 inner join ft_smsender_persons
as p1 on p1.id = p2.person_id ) as p2 on g.id = p2.group_id','g.id,g.name,
created,updated where
deleted = 0 group by id,name
实际上涉及三个表:
ft_smsender_groups
ft_smsender_persons2groups - This table holds key from both the tables
ft_smsender_persons
您可以使用以下功能:
SELECT p.name, p.email, GROUP_CONCAT(g.name) AS groups
FROM ft_smsender_persons AS p
JOIN ft_smsender_persons2groups AS p2g ON p.id = p2g.person_id
JOIN ft_smsender_groups AS g ON g.id = p2g.group_id
WHERE deleted = 0
GROUP BY p.name, p.email
我想您正在寻找
组(您的文件名)
功能
可能存在的副本